Wheel mounting means



Oct 1950 B. F. BLACKMARR I 2,524,027

WHEEL MOUNTING MEANS Filed May 5, 1945 IN V EN TOR.

Bream f. 51 Ark/wi e 29 y Patented Oct. 3, 1950' O F F-IC E11 21524.,027 WHEEL MOUNTING: B'yron- E." Blackmarr, Oildale; Califij assignor to- Hopper.- Machine. Works; Inc; G

Application Mayj; 1945, Seria1-No. .592,l89

This invention relatestc *mounting means for wheels, and-"thelike; and relates more particularly to wheel hub structures.

Under certain circumstances,- and particularly' in the oil fields, at mines, etc., much-time-is now tion' is particularly useful: in the mounting of T flywheels.

Anotherobj ect': of the invention is -t'o provide a wheel" hubstructure"- of simple and effective designfor: facilitating the rapid and accurate mounting" of a wheel uporra: shaft;

The=various objectsandfeaturesofmy inven tion will be fully?understood from th fol1owing detailed description of typical prefrred forms-#- and applications of the invention throughout whichdescription reference-is made to the accompanying drawing, in which:

Fig. 1 is a side-elevationa'l view'of a wheel mountedon: a: shaft ancl-l embodying; the 1 invention, the shaft being shown in cross-section;

Fig. 2 is a..side.view. thereof, partly, in central section.

Fig: 3-is an enlarged sectional view of the-hub structure shownin Fig. 2 w-ith-the shaft removed.

Fig. 4 is'a perspectiveview"of an element of the 'hub' structure.

Fig. 5 1s a perspective-view of" an inside end view-of a modification-of--a-tapers1eeve employed in 'the invention.

In the preferred-embodimenfiof the invention" illustrated in Figs.- 1- to-4 inclusive, and-which is: intendedonlyas exemplary" thereof, a*- wheel I is shown as mounted" upon"; a" shaft l-l as: by; the hub structure ['2- made according tot" this; invention. Y

The wheel IW'ma comprise' a'rim anda web l6. These Wheel parts may be of typical design and the web I 6 may be formed as arms in a conventional manner. The wheel l0 also includes a central hub I1 and, in the present 2' Glail'ns: (-01. 28 7- 529015) v 21.- instance, it. is prferred'tdicirm thebore, l80f..1' said hub with t'apersgone from eachouter. hub. face l9" inward to' the center of; the, bore; I85.

The'b'ore l8"is thus outwardly flared,from.itsL

center in both directions as shown atIZU': The 10111) I] "may; also. be. provided ,with a plurality-of; preferably. uniformly spaced'through holes.. 2.1. extending: from face to face, of said hub. and}; therefore, co-extensive with;the,.bore. l8ll Said? holesmay-be;arranged-around the bore ahdladjacent thereto: ii;

The hub structure I 2 thatiIhave providedfmay. include a pair of substantially. similar; wedge-J members characterized by sleeye sr 22" and. 23;.

and 'the outer peripheral surface,ofeac.ri;sleeve;v is preferably tapered: as at 25; from. a larger: diameter: at" the flange" 24'"to; a smaller diameter; atiit's inner: face 2611. The taper OfQthe SlEBVGS; 22" and 23*is preferred" to..be' substantialIy the; same. as* thetapers 201'of'the -bore l8. Each. of? the-taper: sleeves 22 and. 231. isfalso preferably" formed witha plurality of uniformly ,spaced'llom gitudinal'islots 21* which *extend' from" the sleeve: end 26 to theinner face 28' of'the flang 241th; divideth'e sleeve into longitudinailydisposed seg;

ments-in the nature ofiarcu'ate' fingers or thelikei 29; having a" degree of. resiliency wherebyyeach? sleevemay function'as' aspring; collet. The 'slot's; 2T- may all be identical; However; shouldiacicommodation be-desired'ior azkeyor feather one of'said slots;such as: the slot 30;of11eachsleeve. 22 and-23may be made ,wider for-this purpose; When a slot isprovided" for akeyit, is extendedfi through the flange .partz2'4as illustrated'in Fig. 32',-

When a" keyiis used, the. huh. I I is. DIOVidedIZ witl'ra keyway 3 I which" together withrthe slots. 30 of; the sleeves, 22 and'j23, affordsa. common.

keyseat' for the. key or feather ,32 showminFigs.

Each flange 24 has a, plurality. of. uniformly,- spaced holes arranged around?v the axial cent'err. ofthe .sleeve for alignment with. .the-holes.2fl. in.. the hub. IT; The holes 33 in.thes1eeve 22' may;

be, threaded .andthe holes 34 .in-the sleet e23 may be clearance holes;for. meanssuchi as bolts, 35, which are. arrangedgto. passcthrough the respeee tiVeali'gnedI holes... 34," ,2]. and. 3.3. Eachrboltf. has; a. head.'36.' to engage the flange. having; the: ho1s.3 4 .and bymeans ofswhichztheaboltamambee operated to be inserted into and removed from its position connecting the flanges. The holes 2| in the hub l1 and the holes 33 an 34 of the respective sleeves 22 and 23 are preferably oriented with respect to the respective keycurely and accurately mounted on shafts vary-' ing somewhat in diameter.

Each of the sleeves 22 and 23 may be modifled as shown in Fig. 5. When machining the slot 30, which extends between the sleeve end 26 and the outer face of the flange 24, the flange may, also, be through slotted as shown at 40. In this case, the holes 33 or 34 may be arranged as shown in radial alignment with the fingers 29. The holes 2 I, in the hub H of the wheel will, of course, be oriented accordingly so as to provide for key receiving alignment of the slot 30 and the keyway 3!. The slot 40 provides an in-' terrupting gap in the taper sleeves 23 and 22 whereby said sleeves are each more resilient and afford greater flexibility in use.

When mounting a wheel, taper sleeves having bores of suitable size are selected and placed snugly into both tapered bore parts of the hub of the wheel with the slots of said sleeves in alignment with the keywajz 3| of said hub. The bolts 35 are the placed in position but left in ,slacked off con ion. The key 32 is then inserted in the shaft keyway, and the wheel, together withits hub assembly 22, slid onto the shaft. The bolts 35 may then be taken up to draw the taper sleeves 22 and 23 toward each other and to cause the fingers 29 of the sleeves to be inwardly sprung in the nature of a spring collet as the tapers 25 of the sleeves slide into the tapers 20 of the wheel here. By careful tightening of the bolts 35, and checking the angle of the wheel face with respect to the shaft axis, the power exerted by the taper of the parts will cause a gradually increased and substantially uniform gripping force of the fingers 39 on the shaft. It may be seen that when the bolts 35 firmly, properly and securely mounted and, even without the key 32, will be effectivelysecured. Unless high starting torques on the shaft are involved said key may be omitted.

It willv be noted that forces set up by rotation of the shaft are centrifugal and, therefore, normal of the shaft axis whereas the lines of application of the forces applied for mounting the wheel are longitudinal with said shaft axis. It follows, then, that the rotational forces cannot become effective to loosen the hub assembly.

-havebeen fully tightened, the wheel will 'be Also, it will be noted that the bolts 35 are in tenany variations or modifications that may appear to those skilled in the art and fall within the scope of the following claims.

Having described my invention, I claim:

1. In combination, a shaft, a wheel with an axial bore having outwardly flaring tapers from the center thereof and formed with a key slot extending longitudinally thereof, said wheel also having uniformly spaced axially disposed openings around said bore and extending through it from one end to the other, a tapered sleeve in each taper of the wheel bore and around the shaft, a flange at the large end of each .of said sleeves and having openings aligned with the spaced openings of the wheel, said sleeves having a plurality of longitudinal slots dividing them into shaft gripping fingers, one of said slots being wider than the others and aligned with the mentioned key slot in the hub to form a keyway, a key on the shaft having driving engagement with the slots in the sleeves and the slot in the hub, and means guided in the openings in the wheel and engaged in the openings in the flanges for driving engagement and for drawing said sleeves toward each other.

2. In combination, a shaft, a wheel having an axial bore with outwardly flaring tapers from the center thereof and formed with a longitudinally disposed key slot, said wheel also having uniformly spaced axially disposed openings around said bore and extending throughthe wheel from one end to the other, a tapered sleeve in each taper of the wheel bore and around the shaft, a radially projecting annular flange on the large end of each of said sleeves, each flange having openings aligned with the spaced openings of the wheel, said sleeves having a plurality of longitudinal slots dividing said tapered sleeves into shaft gripping fingers, one of the slots in each sleeve being wider than the others and extending through the flange joined with the sleeve and aligned with the mentioned key slot in the hub to form a keyway, a key on the shaft having driving engagement with the slots in the sleeves and r the slot in the wheel bore, and bolts guided in said openings in the wheel and having their heads engaged with the flange of one of the sleeves and threaded to the flange to the other sleeve for driving engagement and for drawing said sleeves toward each other. 7

- BYRON F. BLACKMARR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 355,062 Cook Dec. 28, 1886 364,537 Miller June 7, 1887 668,017 Pessano Feb. 12. 1901 733,408 Mack July 14, 1903 827,346 Bubb July 31, 1906 929,762 Hess Aug. 3,-1909 1,009,729 Ekeberg ct al Nov. 28, 1911 1,377,101 Sparling May 3, 1921 1,378,091 Carlsen May 17, 1921 1,382,606 lNorton June 21, 1921 1,454,657 Smith May 8, 1923 1,670,381 Rogers May 22, 1928 2,262,112 Nash Nov. 11, 1941 

